cxDoubleSpanSlider.cpp

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.

Copyright (c) 2008-2014, SINTEF Department of Medical Technology
All rights reserved.

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modification, are permitted provided that the following conditions are met:

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   this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice, 
   this list of conditions and the following disclaimer in the documentation 
   and/or other materials provided with the distribution.

3. Neither the name of the copyright holder nor the names of its contributors 
   may be used to endorse or promote products derived from this software 
   without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE 
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
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=========================================================================*/
#include "cxDoubleSpanSlider.h"
#include <QDoubleSpinBox>
#include "cxHelperWidgets.h"

namespace cx
{

void SliderRangeGroupWidget::addToGridLayout(QGridLayout* gridLayout, int row)
{
  gridLayout->addWidget(mLabel,      row, 0);
  gridLayout->addWidget(mLowerEdit,  row, 1);
  gridLayout->addWidget(mUpperEdit,  row, 1);
  gridLayout->addWidget(mSpanSlider, row, 2);
}

SliderRangeGroupWidget::SliderRangeGroupWidget(QWidget* parent, DoublePairPropertyBasePtr dataInterface, QGridLayout* gridLayout, int row) : OptimizedUpdateWidget(parent)
{
        mData = dataInterface;
        this->init(gridLayout, row);
}

void SliderRangeGroupWidget::init(QGridLayout *gridLayout, int row)
{
        mLabel = new QLabel(this);
        mLabel->setText(mData->getDisplayName());
        mLowerEdit = new QDoubleSpinBox(this);
        mSpanSlider = new DoubleSpanSlider(this);
        mSpanSlider->setOrientation(Qt::Horizontal);
        mSpanSlider->setHandleMovementMode(QxtSpanSlider::NoOverlapping);
        mUpperEdit = new QDoubleSpinBox(this);

        this->setDecimals(mData->getValueDecimals());

        if (gridLayout) // add to input gridlayout
        {
                        gridLayout->addLayout(mergeWidgetsIntoHBoxLayout(mLabel, addDummyMargin(this)), row, 0);

                        QHBoxLayout* controlsLayout = new QHBoxLayout;
                        controlsLayout->setSpacing(0);
                        controlsLayout->setMargin(0);
                        gridLayout->addLayout(controlsLayout, row, 1);

                        controlsLayout->addWidget(mLowerEdit);
                        controlsLayout->addWidget(mSpanSlider, 1);
                        controlsLayout->addWidget(mUpperEdit);
        }
        else // add directly to this
        {
                QHBoxLayout* topLayout = new QHBoxLayout;
                topLayout->setMargin(0);
                this->setLayout(topLayout);

                topLayout->addWidget(mLabel);
                topLayout->addWidget(mLowerEdit);
                topLayout->addWidget(mSpanSlider, 1);
                topLayout->addWidget(mUpperEdit);
        }

        connect(mLowerEdit, SIGNAL(valueChanged(double)), this, SLOT(textEditedSlot()));
        // connect to slider
        connect(mSpanSlider, SIGNAL(doubleSpanChanged(double, double)), this, SLOT(doubleSpanChangedSlot(double, double)));
        connect(mUpperEdit, SIGNAL(valueChanged(double)), this, SLOT(textEditedSlot()));

        // connect to backend
        connect(mData.get(), SIGNAL(changed()), this, SLOT(dataChanged()));
        this->dataChanged();
}

void SliderRangeGroupWidget::setRange(const DoubleRange& range)
{
        mData->setValueRange(range);
        this->updateGuiRange();
}

void SliderRangeGroupWidget::setDecimals(int decimals)
{
        mLowerEdit->setDecimals(decimals);
        mUpperEdit->setDecimals(decimals);
}

std::pair<double,double> SliderRangeGroupWidget::getValue() const
{
        return std::make_pair(mData->getValue()[0], mData->getValue()[1]);
}

void SliderRangeGroupWidget::doubleSpanChangedSlot(double lower, double upper)
{
        this->setValue(lower, upper);
}

bool SliderRangeGroupWidget::setValue(double lower, double upper)
{
        Eigen::Vector2d val = Eigen::Vector2d(lower, upper);
        if (val == mData->getValue())
                return false;

        mData->setValue(val);
        return true;
}

void SliderRangeGroupWidget::textEditedSlot()
{
        this->setValue(mLowerEdit->value(), mUpperEdit->value());
}

void SliderRangeGroupWidget::dataChanged()
{
        this->updateGuiRange();

        mSpanSlider->blockSignals(true);
        mLowerEdit->blockSignals(true);
        mUpperEdit->blockSignals(true);

        mSpanSlider->setDoubleSpan(mData->getValue()[0], mData->getValue()[1]);
        mLowerEdit->setValue(mData->getValue()[0]);
        mUpperEdit->setValue(mData->getValue()[1]);

        mSpanSlider->blockSignals(false);
        mLowerEdit->blockSignals(false);
        mUpperEdit->blockSignals(false);

        emit valueChanged(mData->getValue()[0], mData->getValue()[1]);
        this->setModified();
}

void SliderRangeGroupWidget::updateGuiRange()
{
        DoubleRange range = mData->getValueRange();

        mSpanSlider->setDoubleRange(range);

        mLowerEdit->setRange(range.min(), range.max());
        mLowerEdit->setSingleStep(range.step());

        mUpperEdit->setRange(range.min(), range.max());
        mUpperEdit->setSingleStep(range.step());
}


} // namespace cx